vulnerability
Ubuntu: (CVE-2022-50498): linux vulnerability
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:L/Au:S/C:N/I:N/A:C) | Oct 4, 2025 | Oct 10, 2025 | Dec 2, 2025 |
Description
In the Linux kernel, the following vulnerability has been resolved: eth: alx: take rtnl_lock on resume Zbynek reports that alx trips an rtnl assertion on resume: RTNL: assertion failed at net/core/dev.c (2891) RIP: 0010:netif_set_real_num_tx_queues+0x1ac/0x1c0 Call Trace: <TASK> __alx_open+0x230/0x570 [alx] alx_resume+0x54/0x80 [alx] ? pci_legacy_resume+0x80/0x80 dpm_run_callback+0x4a/0x150 device_resume+0x8b/0x190 async_resume+0x19/0x30 async_run_entry_fn+0x30/0x130 process_one_work+0x1e5/0x3b0 indeed the driver does not hold rtnl_lock during its internal close and re-open functions during suspend/resume. Note that this is not a huge bug as the driver implements its own locking, and does not implement changing the number of queues, but we need to silence the splat.
Solutions
References
- CVE-2022-50498
- https://attackerkb.com/topics/CVE-2022-50498
- URL-https://git.kernel.org/linus/6ad1c94e1e7e374d88f0cfd77936dddb8339aaba
- URL-https://git.kernel.org/stable/c/6ad1c94e1e7e374d88f0cfd77936dddb8339aaba
- URL-https://git.kernel.org/stable/c/6f1991a940b90753b34570f093a21dba366e8cc0
- URL-https://git.kernel.org/stable/c/a845a0c4bdece2c0073ecea2fca7c4d5f0550f78
- URL-https://git.kernel.org/stable/c/c0323c0fd07804d5874699e93f935cda0d989c67
- URL-https://www.cve.org/CVERecord?id=CVE-2022-50498
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